Home page logo
/

fulldisclosure logo Full Disclosure mailing list archives

Re: Secure OWA
From: "Bardus Populus" <disclosure () wykkyd securecoffee com>
Date: Wed, 30 Aug 2006 11:31:56 -0400 (EDT)

Running an active event log monitor (Symantec's ITA comes to mind as a
quick example) will catch both the brute forcer and/or the lockouts
(regardless of which way you set it up - to lock or not) - and respond
with some appropriate action to notify you as to the happenstance rather
than wait for an admin to review the logs (n)ever.

(bp)


On 8/30/06, Renshaw, Rick (C.) <rrenshaw () ford com> wrote:


-----Original Message-----
From: full-disclosure-bounces () lists grok org uk
[mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of Dude
VanWinkle
Sent: Saturday, August 26, 2006 2:30 PM
To: Adriel Desautels
Cc: full-disclosure () lists grok org uk
Subject: Re: [Full-disclosure] Secure OWA

The only real fault I know about is the fact that you can guess
passwords
eternally without locking out user accounts.

There's two sides to this risk.  If you allow OWA logins to lock out
accounts, and your OWA page is available from anywhere on the Internet,
you
are handing an easy DOS tool to anyone that knows the account names for
people on your server.


Perhaps. But a temporary lockout period would deter brute-force
attempts while still making an attacker do some work to keep the
accounts locked (eg, if you have a lockout of 5 minutes, brute forcing
is no longer practical, but at the same time, if you want to DoS
someone's account you have to keep coming back every 5 minutes. And
that increases the risk you'll get caught.)

-Brendan

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/



_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]